Abstract: An arrowhead includes a threaded stud at the front end of the body for accepting an arrowhead tip. A longitudinal finger is disposed coaxial with the stud and projects forward therefrom. Engagement means are operatively associated with the tip for engaging the finger when an arrowhead tip is screwed onto the body to inhibit the tip from becoming unintentionally loosened with respect to the body. In another aspect of the invention, a blade is pivotably mounted to an arrowhead body such that the blade is pivotably movable between first and second positions. The blade lies adjacent the body when in the first position. A slot is formed in the body adjacent the mounting position so as to receive a portion of the blade therewithin when the blade is in the first position, and a recess is formed around the slot to provide a means of escape for mud.

Abstract: An arrowhead comprises an elongated body having front and rear ends, means at the front end of the body for accepting an arrowhead tip, and means at the rear end of the body for coupling the body to an arrow shaft. At least one blade or barb member is pivotably mounted to the body such that the blade member is movable between a first position, in which the free end of the blade is disposed rearward of the mounting location and a major portion of the blade is positioned adjacent the body, and a second position, in which the free end of the blade is disposed radially outward of the mounting location. A flexible ring is disposed around the circumference of the body, and a notch formed in the blade member is configured to engage the flexible ring to releasably retain the blade member in the first position.

Abstract: An arrowhead with pivotal blades has a body with a mounting location adjacent a first end of the body. An elongated blade has a first end of the blade pivotably mounted to the mounting location of the body about an axis of rotation such that the blade is pivotably movable between first and second positions. The blade lies substantially parallel to the longitudinal axis of the body when in the first position with the second end of the blade adjacent the second end of the body, and the second end of the blade extends outward and closer to the first end of the body when the blade is in the second position. A bearing surface is formed at the second end of the blade so as to be contacted by a target surface to pivot the blade from the first position to the second position when the bearing surface strikes a target. The blade has a cam portion formed thereon adjacent the axis of rotation.